Erreur SQL !
FROM posts WHERE (REPLACE (titre_post,"�","e") LIKE "%rechercher'trzwtp<'">wkkymb%" OR REPLACE (texte_post,"�","e") LIKE "%rechercher'trzwtp<'">wkkymb%") AND affiche_post="1" AND sujet_post="1" ORDER BY id_post DESC
FROM posts WHERE (REPLACE (titre_post,"�","e") LIKE "%rechercher'trzwtp<'">wkkymb%" OR REPLACE (texte_post,"�","e") LIKE "%rechercher'trzwtp<'">wkkymb%") AND affiche_post="1" AND sujet_post="1" ORDER BY id_post DESC